Publications by authors named "A O Matskiv"

Background: Breeding programs for nutrient-efficient tea plant varieties could be advanced by the combination of genotyping and phenotyping technologies. This study was aimed to search functional SNPs in key genes related to the nitrogen-assimilation in the collection of tea plant (L.) Kuntze.

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Article Synopsis
  • The study utilized a novel experimental design to identify key biological pathways affected by nitrogen deficiency in an evergreen tree crop, highlighting processes like lignin biosynthesis and defense responses.
  • The research found significant upregulation of the MAPK pathway and ATP-binding cassette transporters, with a greater focus on calcium signaling over hormone signaling, particularly involving auxin and abscisic acid.
  • A total of 45 transcription factors were increased under nitrogen deficiency, indicating a shared regulatory role in both nitrogen and pathogen responses, especially in relation to flavanoids and cell wall integrity.
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This study discusses the genetic mutations that have a significant association with economically important traits that would benefit tea breeders. The purpose of this study was to analyze the leaf quality and SNPs in quality-related genes in the tea plant collection of 20 mutant genotypes growing without nitrogen fertilizers. Leaf N-content, catechins, L-theanine, and caffeine contents were analyzed in dry leaves via HPLC.

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Introduction: Low temperatures and drought are two main environmental constraints reducing the yield and geographical distribution of horticultural crops worldwide. Understanding the genetic crosstalk between stress responses has potential importance for crop improvement.

Methods: In this study, Illumina RNA-seq and Pac-Bio genome resequencing were used to annotate genes and analyze transcriptome dynamics in tea plants under long-term cold, freezing, and drought.

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Citrus collections from extreme growing regions can be an important source of tolerant germplasms for the breeding of cold-tolerant varieties. However, the efficient utilization of these germplasms requires their genetic background information. Thus, efficient marker systems are necessary for the characterization and identification of valuable accessions.

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